Adjustable buttstock for a firearm



FIG. 1 is a left, front, bottom perspective view of an adjustable buttstock for a firearm showing our new design;

FIG. 2 is a right, rear, top view of the adjustable buttstock for a firearm of FIG. 1;

FIG. 3 is a right side elevation view of the adjustable buttstock for a firearm of FIG. 1;

FIG. 4 is a left side elevation view of the adjustable buttstock for a firearm of FIG. 1;

FIG. 5 is a rear elevation view of the adjustable buttstock for a firearm of FIG. 1;

FIG. 6 is a front elevation view of the adjustable buttstock for a firearm of FIG. 1;

FIG. 7 is a top plan view of the adjustable buttstock for a firearm of FIG. 1; and,

FIG. 8 is a bottom plan view of the adjustable buttstock for a firearm of FIG. 1.

The broken lines showing portions of the design in all figures are included for the purpose of illustrating environment and unclaimed features and form no part of the claimed design. In some instances the broken lines indicate a boundary line and the unshaded surfaces within the boundary line form no part of the claimed design. The long-short segment broken line indicates an unclaimed upper receiver portion of the adjustable buttstock for a firearm and forms no part of the claimed design. 

CLAIM The ornamental design for an adjustable buttstock for a firearm, as shown and described. 